diff options
| author | Linus Walleij <linus.walleij@stericsson.com> | 2009-09-09 11:31:00 +0200 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2009-09-17 09:47:25 +0200 |
| commit | d619bc143e311a738113dbbe7792bd032403939f (patch) | |
| tree | f5a7bebf4058761a223dba7ffc7057d70d17245b /include | |
| parent | bd207cfb0011389d55827b3f3181c60e8c3c7148 (diff) | |
regulator: AB3100 support
This adds support for the regulators found in the AB3100
Mixed-Signal IC.
It further also defines platform data for the ST-Ericsson
U300 platform and extends the AB3100 MFD driver so that
platform/board data with regulation constraints and an init
function can be passed down all the way from the board to
the regulators.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mfd/ab3100.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/linux/mfd/ab3100.h b/include/linux/mfd/ab3100.h index 3ead5cfb638..e9aa4c9d749 100644 --- a/include/linux/mfd/ab3100.h +++ b/include/linux/mfd/ab3100.h @@ -7,6 +7,7 @@ #include <linux/device.h> #include <linux/workqueue.h> +#include <linux/regulator/machine.h> #ifndef MFD_AB3100_H #define MFD_AB3100_H @@ -57,6 +58,14 @@ #define AB3100_STR_BATT_REMOVAL (0x40) #define AB3100_STR_VBUS (0x80) +/* + * AB3100 contains 8 regulators, one external regulator controller + * and a buck converter, further the LDO E and buck converter can + * have separate settings if they are in sleep mode, this is + * modeled as a separate regulator. + */ +#define AB3100_NUM_REGULATORS 10 + /** * struct ab3100 * @access_mutex: lock out concurrent accesses to the AB3100 registers @@ -87,6 +96,25 @@ struct ab3100 { bool startup_events_read; }; +/** + * struct ab3100_platform_data + * Data supplied to initialize board connections to the AB3100 + * @reg_constraints: regulator constraints for target board + * the order of these constraints are: LDO A, C, D, E, + * F, G, H, K, EXT and BUCK. + * @reg_initvals: initial values for the regulator registers + * plus two sleep settings for LDO E and the BUCK converter. + * exactly AB3100_NUM_REGULATORS+2 values must be sent in. + * Order: LDO A, C, E, E sleep, F, G, H, K, EXT, BUCK, + * BUCK sleep, LDO D. (LDO D need to be initialized last.) + * @external_voltage: voltage level of the external regulator. + */ +struct ab3100_platform_data { + struct regulator_init_data reg_constraints[AB3100_NUM_REGULATORS]; + u8 reg_initvals[AB3100_NUM_REGULATORS+2]; + int external_voltage; +}; + int ab3100_set_register_interruptible(struct ab3100 *ab3100, u8 reg, u8 regval); int ab3100_get_register_interruptible(struct ab3100 *ab3100, u8 reg, u8 *regval); int ab3100_get_register_page_interruptible(struct ab3100 *ab3100, |